一个简单的加载系统
by 司徒正美
at 2012-11-21 10:11:00
original http://www.cnblogs.com/rubylouvre/archive/2012/11/21/2777681.html
var check = {}
require = function(name, callback){
//name切割成多个模块名，然后转换为URL
//for循环
//这里会运行于iframe中
var s = document.createElement("script")
document.body.appendChild(s)
s.src = name
//for循环结束
check[name] = callback //以后check[name]会对应一个对象
}
//这是执行回调
require.exec = function(factory, name, list){
var ret = factory.apply(null, list || [])
checkname
}
//这是模块用到define方法
define = function(name, callback, list){
//这大大被简化了，还要从URL还原name，处理依赖列表
var str = "require.exec(" + callback.toString() +",'"+name +"')"
var s = document.createElement("script")
document.body.appendChild(s)
s.text = str;
}